PLATE LXXIX. 



FIG. I. Asterias polythela Verrill. Type. Detached valves of minor pedicel- 



lariae mounted in balsam ; a-d; X 88. 

 FIG. 2. The same specimen. Spines and pedicellariae ; a, b, adambulacral 



spines ; c, a marginal spine with pedicellariae removed ; X 10. 

 FIG. 20. The same specimen, a-d, larger and smaller dorsal spines ; X 16. 

 FIG. 3. Orthasterias columbiana Verrill. Largest specimen from Victoria. 



Cotype. Spines, with pedicellariae and skin removed ; a, b, outer 



adambulacrals ; c, inner one ; X 10. 

 FIG. 30. The same specimen. Spines cleaned of skin and pedicellariae except 



d; a, b, dorsals; c, upper marginal; d, dorsal covered with a 



sheath bearing pedicellariae near the tip; X 10. 

 FIG. 3&. The same specimen. Minor pedicellariae mounted in balsam; c, d, 



entire ; a, b, e, dislocated valves ; X 88. 

 FIG. 3c. The same specimen. Dermal major pedicellariae from the dorsal and 



lateral areas ; X 16. 



(160) 



